/**
 * Copyright (c) 2006-2018 The Apereo Foundation
 *
 * Licensed under the Educational Community License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *             http://opensource.org/licenses/ecl2
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.sakaiproject.sitestats.tool.wicket.components.dropdown;

import org.apache.wicket.ajax.AjaxChannel;
import org.apache.wicket.ajax.attributes.AjaxCallListener;
import org.apache.wicket.ajax.attributes.AjaxRequestAttributes;
import org.apache.wicket.ajax.form.AjaxFormComponentUpdatingBehavior;

/**
 * Adds the Sakai overlay spinner to the DropDownChoice
 * @author plukasew
 */
public abstract class SakaiSpinningSelectOnChangeBehavior extends AjaxFormComponentUpdatingBehavior
{

	private static final long serialVersionUID = 1L;

	public SakaiSpinningSelectOnChangeBehavior()
	{
		super("onchange");
	}

	@Override
	protected void updateAjaxAttributes(AjaxRequestAttributes attributes)
	{
		super.updateAjaxAttributes(attributes);
		attributes.setChannel(new AjaxChannel("blocking", AjaxChannel.Type.ACTIVE));

		AjaxCallListener listener = new SakaiSpinningSelectAjaxCallListener(getComponent().getMarkupId(), false);
		attributes.getAjaxCallListeners().add(listener);
	}
}
